Home / 782,256.30-1,173,721.64-422,355.72

Finding the Fourth Proportional to 782,256.30, 1,173,721.64 and 422,355.72

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Solution

The fourth proportional to 782,256.30, 1,173,721.64 and 422,355.72 is: 633,715.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,256.30 : 1,173,721.64 = 422,355.72 : x
  2. Step 2: Convert to fraction form
    782,256.30/1,173,721.64 = 422,355.72/x
  3. Step 3: Cross multiply
    782,256.30x = 1,173,721.64 × 422,355.72
  4. Step 4: Simplify right side
    782,256.30x = 495,728,046,230.00
  5. Step 5: Solve for x
    x = 495,728,046,230.00/782,256.30
  6. Step 6: Final answer
    x = 633,715.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.